DATA TRANSFER DEVICE OF SERIALIZER/DESERIALIZER SYSTEM

摘要

In a data transfer device which cancels an offset of a differential amplifier for amplifying a received signal and an offset caused by characteristics of a differential transmission line and selects optimum conditions such as pre-emphasis amount of an output pre-emphasis circuit, a first chip (transmission side LSI=transfer engine 210 ) and a second chip (reception side LSI=multiplexing engine 330 ) are connected to each other through differential transmission line 430 and a SerDes (serializer) 401 and a SerDes (deserializer) 402 are used to make signal transmission, so that optimum setting conditions of an offset amount of an offset cancellation circuit included in an input buffer amplifier and a pre-emphasis amount of pre-emphasis circuit included in an output buffer are decided in training using a training PRBS generator 560 and a training PRBS comparator 570.